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Sertoli cells are found in

  • Ovaries and secrete progesterone

  • adrenal cortex and secrete adrenalin

  • seminiferous tubules and provide nutrition to germ cells

  • seminiferous tubules and provide nutrition to germ cells


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seminiferous tubules and provide nutrition to germ cells

The epithelium of seminiferous tubule is made up of two types of cells -Sertoli cells and spermatogenic cells and spermatogenic cells. Sertoli cells are elongated and pyramidal which partially envelop the spermatogenic cells. These nourish spermatozoa, act as nurse cells for differentiating spermatozoa. These secrete a glycoprotein hormone, called inhibin which is involved in the negative feedback control of sperm production.

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In vitro fertilisation is a technique that involves the transfer of which one of the followings into the Fallopian tube?

  • Embryo only, up to 8 cells stage

  • Either zygote or early embryo up to 8 cell stage

  • Embryo of 32 cells stage

  • Embryo of 32 cells stage


Ureters act as urogenital ducts in

  • humans males

  • human females

  • frog's both males and females

  • frog's both males and females


Seminal plasma in human males is rich in 

  • fructose and calcium

  • glucose and calcium

  • DNA and testosterone

  • DNA and testosterone


Vasa efferentia are the ductules leading from

  • testicular lobules to rete testis

  • rete testis to vas deferens

  • vas deferens to epididymis

  • vas deferens to epididymis


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